Size instructions (1-seater )refers to 1 piece of normal cover which is avaliable for the length between 90 and 140cm; (2-seater )refers to 1 piece of normal cover which is avaliable for the length between 145 and 185cm; (3-seater )refers to 1 piece of normal cover which is avaliable for the length between 190 and 230cm; (4-seater) refers to 1 piece of normal cover which is avaliable for the length between 235 and 300cm; Process Technique : Basic Season : Fall and Winter Function Type : All Cover is_customized : No Style : Solid Material : Polyester Fabirc Construction : 140gsm Size : 1-seatr,2-seater,3-seater,4-seater Fabirc Style : Brushed Production : Sofa Cover Applicable Sofa : Sectional Sofa 1-seater : 1 piece of nomal cover avalible for the length between 90 and 140cm 2-seater : 1 piece of nomal cover avalible for the length between 145 and 185cm 3-seater : 1 piece of nomal cover avalible for the length between 190 and 230cm 4-seater : 1 piece of nomal cover avalible for the length between 235 and 300cm material : 92% polyester 8% spandex color : black,gray,wine red,blue,green,red,purple,yellow,navy blue,beige,white tips1 : measure your sofa before buy tips2 : L shape need to buy 2 pieces separtely L shape L shape need to cover separately.so measure the lengh of AA BB.Then we can decide which size to choose for each part. you need to buy totally 2 pieces,each size on the page just contains 1 piece.