The Sky-Watcher Esprit Accessory Bracket (EAB) provides a light weight and convenient way to mount accessories on the stock Esprit rings. 
 
The bracket allows an ZWO ASI Air to be mounted on the side plate, holes from cable management and a V-style saddle assembly for light weight guide scopes. 
 
The EAB is 3D printed using black PETG Carbon Fiber filament. PETG filament is great for outdoor use due to its very high temperature ratings and ability to stay in form up to 165° F (74° C). 
 
Dimensions (LxWxH):
160mm x 121mm x 40mm