Description 30mm x 0.8mm, Quantity: 50 50 T-Pins in a clear plastic container 30mm length x 0.8mm Heat Resistant T-Pins are named this for a good reason. They look like the letter T! T-pins can be used in many different mediums including fabric, cork and carpet boards. They are great to use with blocking mat or to anchor work down during macrame and similar activities. They are sharp and hold securely in place.