This is the Servo Saver Mid-Size W/ Holes. This mounts to the servo and relieves stress on the servo gears. FEATURES: Strong Nylon Construction Black in Color Pre-Assembled Adaptors Included Holes pre-drilled in linkage plate YOU WILL RECEIVE: One Pre-Assembled Servo Saver One Adapter for Futaba One Adapter for HiTec One Adapter for Airtronics REQUIREMENTS: Nothing kh12-26-01 ir/kh &