New Playlife Children's Roller Skates. Children's Roller Skates Playlife Joker. Lightweight plastic roller skates designed for beginners. Comfortable children's in-line skates Playlife. Wheel specification: Playlife 82A (size 27-30 4x70mm; size 31-34 4x70mm; size 35-38 4x70mm) bearings: ABEC 5 brake: Standard