VIMMR-SB Features: -Black plastic studs with aluminum T bolt.-10 pieces packaged in a plastic bag.-Ribbed and threaded plastic studs.-Aluminum T bolt, with 8-32 threads Replacement Stud and T-Bolt package for Magrail customization. Include 10 each of the 3/8” plastic stud and aluminum T bolt..-Magrail TL 3/8" Replacement Socket Stud and T Bolt Pack, 10 Piece. Warranty: -Lifetime warranty does not cover abuse.