Our armrest are designed as an alternative to factory armrests, fit for most size T-shaped armrest regardless of the office chair brand. Simply strap them to your chair. No worried about wrong size for your chair armrests. A easy assembly never trouble you a lot. Simply place the arm your chair's armrest and stick the together to your preferred level of tightness. Features - Color: Black. - Material: PU leather and sponge. - Size: 25.4 x 7.5 x 3.5 - Using the memory foam, super and comfortable for elbow. - New upgraded anti-slip bottom make it it attach to chair stably and firmly. - Relief pain of your arms and elbow during long time working time or while surfing online. - Universal fit for home or office chairs. - Also for any size armrest chair as long as you adjust the length of two extra long straps. Package list: 2 Armrest Pads