These reliable Spring clamps are the perfect tool to help you precisely secure your material to the Rhino- Stone board without slipping while embellishing your costume, leoytard or garment. Vinyl grips and nose will not snag or leave holes in your material. They provide a strong grip but are easily removed or repositioned anywhere needed. Comes in a package of two. (We recommend using two sets per board) Colors may vary, may be ordered as an add-on item.