Used for fixing lamps, bookshelves, hanging cupboards, sinks, curtain chutes, bookshelf chutes, cable trenches, hanging flower pots, water heaters, coat racks, and so on., appropriate for lighter masses. The spring is folded to attach the bigger wall thickness, which is elastically anchored to the product. In any case, it couldmechanically spring open by its spring drive. The usage ofsuperiortools to automate the manufacturingcourse ofto make sure product processing accuracy, so the product look is beautiful, good workmanship. Nice toggle bolts at a a lot bettervalue than largefieldshops. A will need to have for any handyman/lady / home-owner 's devicefield. Handy re-sealable plastic case