These are a 'slip-on' style knee pad with Velcro straps at the top and bottom of the pads that are used to adjust the fit

Rings sold separately

The two-piece rotors feature a slotted rotor design and the choice of 1

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Cartridge bearings are replaceable

AlpineStars Paragon Plus Elbow Pads - L - Black Do Not Ship Internationally These are a 'slip-on' styleLightweight, durable, and flexible, the Paragon Plus will keep the you safe from gravel rash and some bigger impacts without being bulky and uncomfortable. Who's it for? Anyone wanting to make sure they don't have to pick bits of gravel out of their elbows. Protection style? Firm, yet flexible guard for great impact protection, but reasonably unrestricted movement. Materials? Elastic, mesh, and rip stop materials strategically placed to give abrasion