Economy model [U-shaped bottom] Warranty 1 year | Economy model [V-shaped bottom] Warranty 1 year | Economy model [O bottom] Warranty 1 year | 1 second quick removal of U-shaped slow drop universal cover plate [Thickening break resistance] | 1 second quick open generous V-type slow drop universal cover plate [Thickening break resistance] | Mother and child use one key to quickly remove the universal cover plate of U-shaped slow drop toilet | Mother and child quick disconnecting V-type slow drop toilet universal cover plate | Mother and child dual quick-disconnecting O-type slow drop toilet universal cover plate | Mother and child use one key to quickly open the universal cover plate of the generous U type slow drop toilet | Pure material [U type 3 seconds quick disassembly slow down general assembly] Full payment/warranty 20 | Pure material [V type 3 seconds quick disassembly slow down general assembly] Full payment/warranty 20 | Pure material [O-type 3 seconds quick disassembly slow down general assembly] Full payment/warranty 20 | Pure material [small U3 seconds quick disassembly slow down general assembly] Full payment/warranty 20 | Pure material [large U3 seconds quick disassembly slow down general assembly] Full payment/warranty 20 | 3 seconds quick removal of small square U-shaped slow drop general cover plate [thickening break resistance] | 3 seconds quick open generous U type slow drop universal cover plate [Thickening break resistance] | 1 second quick removal of V-type slow drop universal cover plate [Thickened breaking resistance] | 1 second quick removal of O-type slow drop universal cover plate [Thickened breaking resistance] | 1 second quick removal of small square U-shaped slow drop general cover plate [thickening break resistance] | 1 second quick open generous U type slow drop universal cover plate [Thickening break resistance]