Package contents: 1/2 handle system fixing clamps. Compatibility: For Logitech G27 / G29, easy to install. Steering wheel system fixing clamp for G27 / G29 Driving Force GT steering wheel system (spacers and bolts not included). Stronger design, full infill and retains more stretch than the original. The product is made of PETG material (stronger and more durable than PLA. It is also resistant to high temperatures and sunlight. The same material is also used to make plastic bottles, so it is recyclable). Can be installed with original Logitech parts (spacers and fixing bolts not included) and custom parts.