Review on Blue PS4 FPS Games Accessories Kit - Anti Slip Silicon Analog Stick Thumb Grips Set with Trigger Extensions for Playstation 4 / Slim/Pro Controller by Chris Litton

If you really don't want to go to Revain to return two sets of these (original order and order to replace a broken pair) don't buy them. Tigger Extensions hardly snap and then fall off immediately. Not even remotely snug, certainly not strong enough for a gamer to use reliably. Such a waste of time, literally 1/4 of the trigger went off.