The 333 rapid assembly circuit board holder features and eight position rotation adjustment and six positive lock positions in the virtical plane. Model 318 cross bars are available up to 30" (762mm) in length to hold circuits boards up to 28" (711mm0 wide. Extra 316 circuit board arms can be added for dual or multiple board holding. Spring loaded, the 333 features tilt angle adjustment. Weigth - 7.50 lb./ 3.4kg