1. Material: plastic
2. Rotary tightening, the tightening is not easy to loosen
3. Double-sided can be spliced, easy to use
4. Can be spliced out of animals and plants, numbers, letters, etc., to improve imagination and practical ability
5. Rounded corners, protect baby's immature hands
6. The outer box has a portable design for large-capacity storage
7. Expanded size: 30x48 cm
8. Weight: 106 piece set 0.3 kg; 073 piece set 0.4 kg; 188 piece set 0.8 kg; 189 piece set ordinary 0.92 kg; 189 piece set rechargeable 0.95 kg; 275 piece set 0.85 kg; 276 piece set ordinary 0.98 kg; 276 piece set of charging 1 kg; 316 piece set of ordinary 1.02 kg; 316 piece set of charging 1.05 kg; 399 piece set of ordinary 1.07 kg; 399 piece set of charging 1.1 kg; 466 piece set of ordinary 1.17 kg; 466 pieces Set charging 1.2 kg
9. Powered by 2 x AA batteries (not included)
10. The charger kit is recharged for AA battery (battery not included)