This is new type of changeable pads which consist of 4 part of pads. These pads are suitable for the following models of knee pads:
Knee pads 4 - Black Elite, Knee pads - Easy Way - Black 4, Knee pads - High Matter - Black 4, Knee pads - Sleek Black Pro - 4 and other model with 4 part pads.
There are 3 types of pads:

Standard - thickness - 1 cm- perfect for workout! Tight-fitting knee cup takes any knee shape. Provides softness and comfort;This is your perfet choice for performances and competitions
Plus - thickness - 1,5 cm - of higher impact resistance! For intensive load on knees.Perfect match for sensitive knees;
Light - thickness - 0,5 cm - discreet pads!This is your choice for performances and competition.