Product Information: Heated thermostatic coasters Material: ABS+ glass-ceramic panel Product Net Weight: 0.27 (Ib) Weight of a single color box: 0.4 (Ib) Product Net Size: 5*4.7*0.79(in) Color box specification:6*5.4*1(in) Carton Size:22*15*8 (in) Carton net weight: 1 (lb) Packing quantity: 50 pcs Weight per Container: 22(lb)