---
product_id: 686559569
title: "LMB Spring Finger Extension Splint, B"
brand: "lmb"
price: "AR$1048"
currency: ARS
in_stock: false
url: https://www.desertcart.com.ar/products/686559569-lmb-spring-finger-extension-splint-b
store_origin: AR
region: Argentina
---

# 3-inch medium size for tailored support Joint-aligned motion axis Precision wire-foam fit LMB Spring Finger Extension Splint, B

**Brand:** lmb
**Price:** AR$1048
**Availability:** ❌ Out of Stock

## Summary

> 🦾 Unlock your finger’s full potential with precision and comfort!

## Quick Answers

- **What is this?** LMB Spring Finger Extension Splint, B by lmb
- **How much does it cost?** AR$1048 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/686559569-lmb-spring-finger-extension-splint-b)

## Best For

- lmb enthusiasts

## Why This Product

- Trusted lmb brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Custom-Fit Comfort:** Wire-foam design molds perfectly for all-day wear without irritation
- • **Anatomical Alignment:** Axis of motion positioned close to PIP joint ensures natural finger movement
- • **Compact & Lightweight:** At just 18g, it’s barely noticeable but powerfully effective
- • **Patient-Centric Design:** Curved distal pad enhances comfort during prolonged use
- • **Targeted Extension Recovery:** Engineered to regain those crucial last degrees of PIP joint extension

## Overview

The LMB Spring Finger Extension Splint, size B, features a high-quality wire-foam construction designed for a customized, comfortable fit. It targets the last degrees of PIP joint extension with an axis of motion aligned close to the joint, ensuring effective and natural finger movement. Lightweight and ergonomically curved, this splint supports recovery while maintaining patient comfort.

## Description

LMB Spring Finger Extension Assist High quality Wire-Foam construction for a customized fit Versatile model extends PIP joint with a slight extension effect on MP joint Designed for patient comfort with an emphasis on distal pad curvature Tension is adjustable by careful bending Force: 15° flexion ≈ approx. 8 oz.; 90° flexion ≈ approx. 4 lbs. INDICATIONS: Finger flexion tightness; Boutonniere deformity (allows IP flexion) Size Measurement Product # X-Small 2¼" 501AA Small 2⅝" 501A Medium 3" 501B Large 3½" 501C X-Large 4" 501D

## Features

- High quality Wire-Foam construction for a customized fit
- Ideal for regaining last few degrees of PIP extension
- Axis of motion is close to the PIP joint to maintain splint alignment
- Measure finger to be fitted from palmar crease to distal finger crease (with finger extended), size B measures 3"
- Distal pad curvature provides patient comfort

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | LMB |
| Part number | 74103 |
| Item Weight | 18 g |
| Product Dimensions | 17.02 x 13.21 x 1.78 cm; 18 g |
| Item model number | 74103 |
| Size | Medium |
| Style | B |
| Item Package Quantity | 1 |
| Batteries included? | No |
| Batteries Required? | No |

## Product Details

- **Age Range (Description):** Adult
- **Brand:** LMB
- **Color:** Whitev
- **Size:** AA
- **Use for:** Finger

## Images

![LMB Spring Finger Extension Splint, B - Image 1](https://m.media-amazon.com/images/I/61GDfJJs9cL.jpg)
![LMB Spring Finger Extension Splint, B - Image 2](https://m.media-amazon.com/images/I/51ivDB+b3XL.jpg)
![LMB Spring Finger Extension Splint, B - Image 3](https://m.media-amazon.com/images/I/5127Y1jCM3L.jpg)
![LMB Spring Finger Extension Splint, B - Image 4](https://m.media-amazon.com/images/I/51F4h3DrJOL.jpg)
![LMB Spring Finger Extension Splint, B - Image 5](https://m.media-amazon.com/images/I/61vTEyMDZIL.jpg)

## Questions & Answers

**Q: What are the dimensions of this item B?**
A: Three or four inches, roughly

**Q: is this the right size for pinky?**
A: These come in at least two sizes. Probably best if you get fitted by an o Occupational Therapist.

**Q: where is the measurement information to pick a size?**
A: If you look at the display on Amazon, right after the name of the product you will see "AA." That is the size. They range from AA to A to D. Here's what one purchaser wrote, based on language on the packaging when the product was delivered: I, "Measured from palmar crease to distal finger crease." specifically on my left pinky finger, did exactly as told to do, and got (give or take 1/16") 2 1/2"; wherein I purchased this size. After receiving the product and reading the packaging/instructions it clearly indicates that AA is 2 1/4" and A is 2 3/4"

**Q: What is the difference between size a and size aa? i need one for my little (pinky) finger**
A: I had the same question, so I bought both an A and an AA. For a pinky finger, especially for a woman, the A is too large. Get the AA. I returned the A.

## Frequently Bought Together

- LMB Spring Finger Extension Splint, Assists in Extending PIP Joint with A Slight Extension Effect on the MP Joint, Size B
- Watris Veiyi Finger Joint Straightener, Finger Joint Extension Splint, Finger Fixed Rehabilitation, White Average Size Hand Injury Joint Support Pressing Device for Finger Pain Easy Pressing Splint

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*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-02-18*