Dual Clam Shell with Small - Powder coat - 90 forward allows for tablets to be easily mounted; 26 aft movement with a positive stop at 26; Riveted design allows for smoother tilt movement; To tilt the Clam Shell simply loosen the adjustable lever, tilt to desired position and then re-tighten the lever; A secondary bolt is included to lock the clevis into a permanent position; Heavy gauge steel construction for long-term durability in a rugged environment; Black powdercoat finish for maximum corrosion resistance