The Math Balance Activity Set is an excellent, hands-on demonstration tool to show children number relationships and number operations. The Math Balance features a 2-piece beam for easy storage. Includes: - Math Balance - 20 Weights - 20 Double-Sided Activity Cards Age: 5 Years + Item size: 11.5(H) x 38.8(L) x 4.5(W) cm Material: Non-Toxic Plastic Warning: CHOKING HAZARD-Small parts. Not for children under 3 years EDX products are tested for compliance with EN71, ASTM and CPSIA standards. All EDX products meet the ISO 9001 accreditation requirements. EDX is committed to becoming carbon neutral through re-using, recycling and improving energy management. What's in the box Math Balance 20 Weights 20 Double-Sided Activity Cards