Born for Nintendo Switch Joycon -- These wrist straps are created for Nintendo Switch joycons. They are made of good materials and design, and slide smoothly into Nintendo Switch joycon controller. It works with many different types of joycon/joy-pad. IMPROVE GAME FEELING -- The two buttons on switch strap correspond to SL and SR keys on JOYCON respectively. Wearing a strap while playing the game magnifies SL/SR for a better game feeling. AUTOMATIC LOCK -- Slide the wrist strap from bottom to top along the joycon slide until it clicks -- D.Gruoiza joycon straps lock your controller automatically. ADJUSTABLE TIGHTNESS -- Both sides of the wrist straps are equipped with strainers, can be adjusted according to the size of your wrist. YOU WILL GET -- 2 * Joycon wrist straps.