As with the large coupler, the medium is of outstanding quality as well! Allows for tips to be securely attached to the bag, and ease of switching out tips if needed! The quality is MORE than what you pay for... This is such a sturdy piece, it will LAST! Cleans very easily as well, and just makes crafting so much easier and efficient! I HIGHLY recommend all the piping tools Nurture offers... Just like the standards of the company, the quality is unsurpassed!