HangZ 2-hole d-ring picture hangers hold up to 34kg. Use on frames that do not already have hanging hardware. Recommended for frames, mirrors and canvas that do not weigh more than 34kg. For wood canvas or wooden frames only. Sold as a package containing 50 HangZ 2-hole d-ring picture hangers and PHILLIPS head sheet metal mounting screws. HangZ is committed to creating and building the best possible picture hanging hardware Company with the most innovative hanging solutions in the world. Making it easy for the professional, amateur, dyer and consumer to hang anything, anywhere at any time.