This worked great to solve the problem. Before buying, I connected an ohmmeter to the contacts of the faulty one and blew into the end. The reading on the ohmmeter should change if it's not blowing onto another tube. If the ohmmeter doesn't change, then what you have is bad.
๐ฆ Optimized Capacity Storage with Adhesive Casters
10 Review
๐ 2200Lbs Polyurethane Locking Casters DL I4 001: Superior Mobility & Secure Latching
10 Review
Boost Your Mechanics with the BIG RED Creeper Service TR6551
11 Review
๐ง High-Performance Swivel Caster Creeper Service
10 Review