My daughter needs small weights for her 7th grade science fair project, are these appropriate or for small children only?

They are NOT accurate. I have a digital kitchen scale that I have no reason to doubt, and the 1 gram pieces weight under while the 10 and 20 gram pieces are over. Do not expect accuracy for any purpose, including between themselves.

What is the total weight for all combined pieces? I'd like to use these in a ship building activity- are they waterproof too?

There are 54 pcs, totaling 300g. 20-1g, 20-5g, 10-10g, and 4-20g. Yes they are waterproof as they appear to be of a coated resin /plastic composite. Good quality.

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Learning Resources Hexagram Weights - Set of 54 Pieces, Ages 8+, Math Manipulatives for Kids, Teacher Supplies, Back to School, Classroom Must Haves

Learning Resources Hexagram Weights - Set of 54 Pieces, Ages 8+, Math Manipulatives for Kids, Teacher Supplies, Back to School, Classroom Must Haves

Product ID: 1594911

🌈color-coded for easy sorting

📦compact storage box

⚖️54 precision weights

AR$66940

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Sold byAmazon ArgentinaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚖️ Master mass measurement with colorful precision!

ORGANIZED PORTABLE - Includes a sleek storage box to keep your weights neat and ready for action
VIBRANT COLOR CODING - Bright, distinct colors make learning intuitive and visually engaging
DURABLE READY TO USE - Sturdy plastic construction built to last through countless classroom experiments
PRECISION IN EVERY GRAM - 54 stackable hex weights from 1g to 20g for hands-on mass measurement mastery
PERFECT FOR COLLABORATIVE LEARNING - Ideal for ages 8+ and group activities, fostering teamwork and STEM skills

The Learning Resources Hexagram Weights set includes 54 durable, stackable, and color-coded plastic weights ranging from 1g to 20g. Designed for ages 8 and up, this classroom essential enhances hands-on learning with any balance scale, neatly organized in a compact storage box for easy use and portability.

Specifications

ASIN	B000URFT3G
Age Range Description	8+
Best Sellers Rank	#75,790 in Toys & Games ( See Top 100 in Toys & Games ) #851 in Sorting & Stacking Toys
Brand Name	Learning Resources
Color	Multicolor
Customer Reviews	4.7 4.7 out of 5 stars (670)
Educational Objective	Math
Global Trade Identification Number	00765023042924
Included Components	Weights
Indoor Outdoor Usage	Indoor
Is Assembly Required	No
Item Dimensions	6.1 x 4.4 x 1.5 inches
Item Type Name	Hexagram Weights
Item Weight	0.32 Kilograms
Manufacturer	Learning Resources
Manufacturer Maximum Age (MONTHS)	120.0
Manufacturer Minimum Age (MONTHS)	8
Manufacturer Part Number	LER4292
Material Type	Plastic
Model Number	LER4292
Number of Players	1 or more
Operation Mode	Manual
Set Name	Hexagram Weights 54-Piece Set
Size	54 Pieces
Supported Battery Types	No batteries required
Theme	Education
UPC	858160441337 885520233547 765023042924
Unit Count	1.0 Count

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AR$66940

Duties & taxes included

In stock

Sold byAmazon ArgentinaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Argentina.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Good experience, but the tracking updates could be better.

2 months ago

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