Shimano 4 piston brake caliper pad spacer

Pad spacer for 4 piston shimano brake calipers.
The pad spacer for disc brakes is an indispensable tool for transporting a bike without wheels. Once inserted, the spacer prevents the pistons from extending when unintentionally using the brake lever.
Suitable for Deore, SLX and XT brakes like BR-M8120 / BR-M7120 / BR-MT520 / BR-MT420, maybe Zee and Saint as well but I'm not 100% sure.

Update 2023-04-07

reduced thickness for easyier fit between the break pads.