Curt RockerBall Shock Absorbing Trailer Hitch Ball - NAPA Auto Parts
Amazon.com: Shocker Air Hitch w/Drop Ball Mount 4-1/2" to 8-1/2" Drop, Fits 2-1/2" Hitch, Has 2-5/16" Ball 20,000 lbs : Automotive
Shocker Impact Cushion Hitch (Build Your Own)
PEXMOR 2-in-1 Dog Bike Trailer,Pet Stroller Dog Trailer for Bicycle w/Universal Hitch,Folding Pet Cart Bike Wagon Cargo Carrier for Dog Shock Absorber & Universal Wheel - Walmart.com
2019 SEMA New Products | ShockDrop™ Cushion Hitches - YouTube
Shocker HD Max Black Air Drop Hitch 4-1/2″- 8-1/2″ Drop