Pair of black Trigger Hollow wheels in 120mmx24mm/88A for freestyle scooters in street, skatepark and ramp. Its extruded 6061-T6 aluminum core provides super responsiveness and excellent durability. Its rubber is made of very high quality polyurethane, called Super High Rebound, with an 85% rebound rate. Its standard profile and hard 88A compound offer speed, grip and maneuverability on all terrains. Trigger Hollow wheels come with Trigger Precision Abec 9 Standard 8 bearings and an 8mm internal spacer. Sold in pairs with the bearings. FEATURES Wheel diameter 4.72" / 120mm Wheel width 0.94" / 24mm Wheel hardness 88A Wheel profile Standard profile with 8mm of sliding surface Wheel rubber quality Very high quality polyurethane: 85% SHR (Super High Rebound) Wheel core material Extruded aluminum 6061-T6 Bearing model Trigger Precision ABEC 9 Bearings Bearing size Standard 608 bearing type 2RS: 2 nylon flanges Eraser color Black core color Black Design screen printing Product weight 250g (unit) Practice level All levels Frequency of practice All frequencies Product Status New Guarantee 2 years More information at www.triggerextremesports.com