Material: cotton rope
Small size: diameter 10cm, height 6cm, weight about 100g
Large size: diameter 13cm, height 6cm, weight about 130g

Packing list:
1 x Breeding Nests 
1 x Mat
1 x Bracket
2 x Screw
2 x Nut
2 x Gasket

Note:
Different displays may cause the color of the item in the picture a little different from the real thing. 
Manual measuring,please allow 1~3mm error,thank you.