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.

Desertcart Logo

Deliver to Sint Maarten

For best experience Get the App

DOWNLOAD THE APP

WE SOURCE ITEMS FROM

UAE
UK
India
USA
Japan
KOREA

Customer Services

About Us

Customer Support

Description

⚖️ Elevate your math game with colorful precision!

NO FUSS NO BATTERIES - Ready to use out of the box—pure tactile learning, zero distractions
PERFECT STEM COMPANION - Designed for ages 8+, ideal for building foundational numeracy skills
COMPACT ORGANIZED STORAGE - Includes a sleek storage tray to keep your set neat and ready
COLOR CODED FOR INSTANT RECOGNITION - Bright yellow, green, blue, and red weights to simplify measurement concepts
MASTER METRIC WEIGHTS WITH PRECISION - 54 weights ranging from 1g to 20g for hands-on learning

The Learning Resources Metric Weight Set is a vibrant, 54-piece collection of precision weights (1g, 5g, 10g, 20g) designed to introduce children aged 8+ to fundamental weighing and measuring concepts. Each weight is color-coded for easy identification and stored neatly in a compact tray, making it an essential hands-on tool for developing numeracy skills without any batteries or assembly.

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

ƒ91

Duties & taxes incl.

Sint Maartenstore

Free Returns

30 daysfor PRO membership users

15 dayswithout membership

Secure Transaction

ChatGPT - opens in a new tab Perplexity - opens in a new tab Claude - opens in a new tab Grok - opens in a new tab Google AI - opens in a new tab

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

View all Trustpilot reviews

Product Dimensions	15.49 x 11.18 x 3.81 cm; 320 g
Manufacturer recommended age	8 - 12 years
Item model number	LER4292
Educational Objective(s)	Numeracy
Language:	English
Number of Game Players	1
Number of pieces	54
Assembly Required	No
Batteries Required?	No
Batteries included?	No
tech_spec_battery_description_toys	No batteries required
Material Type(s)	Pappe
Remote Control Included?	No
Colour	Multicoloured
Release date	20 April 2010
ASIN	B000URFT3G

Learning ResourcesMetric Weight Set, multicoloured

Description

Specifications

Have a Question? See What Others Asked

Common Questions