SIZE SELECTION( 1 inch = 2.54 cm )Armrest Towel Please choose armrest towel according to the dimension G*H. Seat Cover Please choose seat cover according to the dimensionE * (F+20~30CM) 1pcB * (A+20~30CM) 1pcC * (D+20~30CM) 1pcBackrest Towel P<60cm, you can choose 70x70cm60cm<P<75cm, you can choose 90x90cmP>75cm, you can choose 110x110cmNote :This product photo show is a whole set, only as reference,but sell by 1 pcs specific size.The size of sofa covers you choose, A/D/F should be 20~30cm bigger than the actual size of the sofa.