1 1/4'' pvc coupling

inside coupling for 1 1/4" pvc pipe. Made this in tinkercad to be used for connecting pvc pipe for RC car track. Fit could be a little tighter but a little clear tape will solve that. I did find that not all pvc is created equally. some fit tight and some loose. may have to sand or wrap in tape. this worked very well for the rc track no more catching couplings on a straight. Enjoy