Small loops on the top surface of the DOUBLESKIN & BANTAM serve as mounts for wooden Holding-Pins in order to easily attach the wing onto slippery and steep terrain - e.g. on snow – this will prevent the wing from sliding down after it has been laid out before take-off. If used correctly, the pins are pulled out of the ground or the snow when taking off and they fly into the valley attached to their loops. If one still gets lost, it is no drama - our holding pins are made of wood and therefore biodegradable. Please note: It is very important to remove the pins when packing to avoid any damage to the glider.