inch inner size(cm) kgs/piece 6''*6'' 20*20 3.50 8''*8'' 25*25 4.00 10''*10'' 30*30 4.50 12''*12'' 40*40 6.50 15''*15'' 45*45 9.00 18''*18'' 50*50 14.00 20''*20'' 60*60 17.00 20''*15'' 60*45 18.00 1.Orders with buyers'design or sample are welcome. 2.Goods are packed in our practice,special requirements can be considered.