Four Pearl tom mounting arms, two Uni-lock (vertical adjustment), and two Gyro-lock (360 degree multi-axis adjustment). Both models are ratchetless for smooth, accurate placement. These are some of the most solid mounts I've ever used. Brand new, the Gyro-lock mounts go for well over $100 each. https://reverb.com/p/pearl-th1030s-5x4-gyro-lock-short-tom-holder-arm $20 each for the Uni-lock mounts, $30 each for the Gyro-lock mounts, or reduced prices for buying more than one. Shown in the photos, I'm also selling a RIMS mount for a 12" six-lug drum, which has the Pearl adapter for these mounts. See my other ads for details.