SIZE - Fit for Mounting Size: 0.87"x0.87"-0.94"x0.94"(L*W); Total Size(Min): 1.58" x 2.36"(D*H); Total Size(Max): 1.58" x 2.72"(D*H); Insert Total Size: 0.98" x 0.98" x 0.67"(L*W*H); Insert Thread Size: 0.94" x 0.94"(L*W); Leveling Foot Total Size: 1.58" x 2.36"(D*H); Leveling Foot Base Size: 1.58" x 0.47"(D*H); Leveling Foot Thread Size: M8 x 1.89"(D*L); Leveling Foot Size: M8 x 1.89" x 1.58"; Adjustable Range of Height: 0.47"-2.12"; Package Include: 4 SetsFLOOR PROTECTOR - This insert protect your beautiful hardwood, ceramic tile and vinyl plank floor from marring and scratchesAPPLY SCENE - The adjustable leveling foot is for office or household furniture.