ban mat nhua chan duoc lam bang sat hop so tinh dien chong hoen gi tray suoc chieu rong cua ban 50cm chieu cao 50cm hoac 48cm dai 90cm co 2 kieu chan thong dung mot la kieu chan gap vao trong co lo xo hai la chan cheo hinh chu a mat ban nhieu mau mau xanh la xanh duong mau do vang do ben cua ban rat cao su dung nhieu nam lien sau khi su dung xep lai 1 goc rat gon gang