Grammer Seats are found in a wide range of agricultural and earthmoving machinery and can be in cloth or vinyl. They have an identification tag on the side of the cushion or in some cases, behind the seat. All Grammers have a base identification (egMSG95) then a forward slash followed by the seat reference number (eg/531). Please use the seat reference number. Headrest covers and armrest covers are available as optional extras and if you order an armrest then please email me and let me know if you have the standard armrest or the adjustable armrest. Thanks Di.