arm1a is a simple, fixed arm, good for 1s, 2s and 4s. Arm1c is a longer version of arm1a, and is good for 8s. Arm2a and arm3a have a triangular “gusset” for extra strength. They can be used without sliding parts (2b, 2c, 3b, 3c), or with the sliding parts.
Please select your arm from the dropdown below, prices may vary on the option you choose.