Light, stiff, alloy, rim brake, climbing wheels. All carbon spokes on front wheel. Mix of carbon (non-drive side) and bladed metal (drive side) on rear wheel. Quick release axles and Shimano 11 speed hub. Wheel specs can be found at The Pro's Closet (https://www.theproscloset.com/products/mavic-r-sys-slr-aluminum-clincher-700c-wheelset-4)
These wheels came (oddly) with an aero bike. I got some aero wheels to go with the bike and kept these as back-ups. I've never needed to use them beyond the initial hundred or so miles while I was waiting for the aero wheels to come in. So, they're pretty darn pristine. Original Mavic tires (supposedly supplied to match the wheels) on them as well. Can't remember if I ever rode on the tires.
Comes with the Mavic brake pads, spoke nipple tool, and user documentation.