- Dimensions: 1.5; Long X 0.31; Wide 0.31; Thick These pins are very easy to use. Just peel off the liner on the adhesive and stick the pin onto your item and apply pressure. The adhesive is good for most materials such as wood, plastic, metal and glass. Features: Don't need special tools to apply the pins so it's very convenient for school and home craft projects. Easy to peel off tab makes the mass production possible. The liner is 3 mm longer than the adhesive so you can easily and quickly remove the liner.