If you had to clamp a pipe or a round log into a yew, then for sure it took longer than with special nozzles on the sponges. Nozzles are made the same in the amount of two pieces, the design is quite simple and reliable.
For crafts, you need a piece of corner and a pipe of small diameter. By welding, two pieces of pipe are welded to the corner along the edge and at the outer corner. Devices simply lay on top of the sponge and between them it is very easy to clamp the pipe.
It is convenient to use linings for pipes of different diameters and materials, round timber, and other cylindrical objects. The device can always be removed from the yews and work with them normally.