To ensure the best possible adhesion, the turquoise adhesive surface should be protected from possible contamination. The intended areas must be dry, firm, clean, free of grease and dust. Remove the protective film from both boons without touching the turquoise adhesive surfaces. Attach both boons with the turquoise side with pressure on the intended surfaces to be joined. Please make sure that air inlets are avoided. connect boon 1 and boon 2 by pressure. By simply pulling off the Velcro can be opened again. The boons can always be removed from the surfaces and reused.