Lightweight steel spring can be fitted to 3" to 2.5" shocks. 75mm to 65mm might fit 60mm spring length in photos. Comes with couple of spacers.
SG Store 2pcs Bicycle Rear Shock Bushing Bushes Hardware Aluminum Alloy Rear Shock Mounting Hardware Compatible with Fox Compatible with Rockshox(8x22.2mm)
Fox Float X CTD rear shock, Kashima coated, Fox rear shock, 8.75" x 2.5" read
Mountain Bike Rear Shock Bushing Bike Rear Suspension Shock Absorber
MTB Rear Shock Bushing Bike Rear Suspension Shock Absorber DU Bushing
DNM Rear Shock AO-39RC MTB Bike Rear Shock Absorber 165/190/200mm Bicycle Pump