The NGT T-Lock Fully Locking Spring Clamp Rod Rest is a handy accessory for anglers that provides a secure hold for their rods. With a magnetic mechanism and made of durable nylon material, this clamp offers secure attachment for rods with diameters up to 22mm. The M 3/8 plastic thread with locking ring ensures a firm and reliable attachment to various rod rests. In addition, rubber inserts have been added to protect the rod from damage during use. With its user-friendly design, this clamp offers convenient functionality for a comfortable and worry-free fishing experience.