Gemtune Leveling Base DY-60i with Quick Release Clamp and plate ,Offset bubble level Replaces Sunwayfoto DYH-66i RRS,Benro,Kirk,Markins,Arca comaptible This leveling base is CNC machined from light weight aluminum and satin anodizing Removable offset spirit level Base diameter : 60mm(2.4 Inches). Max load :22 lbs. Notice: There's a grease lubricant that spreads on the bottom of the ball pivot to make the operate better as you tilt the unit. DIFFERENT COMBINATIONS, DIFFERENT EFFECTS! We are doing the promotion now, if you need different function products to improve your photograph, please have a look and maybe you could get different effect!