About Camera Mech Classic Upgrade: Camera Mech is upgraded to a hybrid slider with mechanical tracks. Interchangeable track plates are included, offering three travel modes: standard 15‑click, defined 10‑click, and dense 20‑click. Users can switch tactile feedback density as desired. Equipped with four sets of springs and internal PTFE plates, it allows DIY damping adjustment after removing the push plate for diverse flat‑push fidget experiences. Lens Ratchet: Replicates the adjustment mechanism of a camera lens, delivering crisp ratchet clicks. Three reserved 2.5 mm tuning holes on the body support swapping different‑tension springs and 2.381 mm lens beads. You can freely adjust ratchet tactility and resistance to recreate the satisfying feel of focusing a camera lens. Cart Seesaw: Inspired by film‑cartridge seesaw mechanics, it produces sharp “tick‑tick” sounds when flicked. Combined with hand‑textured orange‑peel finish, the button sits naturally under your grip for mindless repeated fidgeting. Multiple play modes work together to deliver multi‑dimensional stress relief.