They are slide plates that attach to your goalie pads so that roller hockey goalies can slide. Here is the description from Ice Warehouse:
Materials:
Hard plastic panels to reduce friction when sliding
Plastic ball bearings to enhance slides
Plastic backing screwed in to hold bearings in places
Three - 1" Nylon velcro straps to secure the knee plates
One strap runs horizontally and two straps run vertically
One - 1.5" Nylon velcro strap runs vertically to secure the calf plate
One - 1" Nylon velcro strap runs horizontally to secure the calf plate
Design:
Total of four plates to maximize sliding
Two knee plates
Two calf plates
Multiple slots to customize strapping for different pads
Ball bearings embedded into plastic slide plates
Fit:
Will fit most 30"-38" sized leg pads
Plates can fit most 26"-28" leg pads, but it is not an optimal fit, and therefore cannot be fully recommended.
Used literally one time. Like-new condition.
Worked well, but just don't play much roller hockey. Thanks for looking!
There are videos online showing you how to attach them. They have straps, but you can also use velcro (my preference) to quickly attach. I'm listing this while at work, but I believe the slide plates still have the velcro on them, and I will include the rest of the industrial strength velcro you can use for your pads. (should save you another $20)
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