If sold separately, 1000 yen per 2 sets. Please feel free to contact me. [Board Anchors] Suitable board thickness: 6-10mm. Pilot hole: 8mm 　　　　　　　　Working load: 7kgf 　　　　　　　　For gypsum board, Gyptone [Ceiling Lock] Specifications: Wire can pass through, M4 board anchor compatible, wire diameter (∮mm) compatible: 1.2 [Wire] 1.5m ∮1.2 Everything in the photos. Use board anchors to attach to the ceiling. Ideal for displaying merchandise, lighting fixtures, artwork, signs, etc. from the ceiling. Please attach to a surface with strength equal to or greater than that of gypsum board. The full performance of the Handy Puchi cannot be achieved with boards that are weak against loads, such as soundproof boards. Please use board anchors that match the thickness of the ceiling board. No need to enter the ceiling. You can easily install it by using board anchors. Excess wire can be sent into the ceiling space.