Standardni O-prstenovi NEO TOOLS 11-977 od NBR materijala (nitrilna guma), komplet od 225 komada, mogu se koristiti u bilo kojoj profesionalnoj radionici. Isporučuju se u praktičnoj kutiji. Set uključuje: 20 x (3 x 1 mm), 20 x (4 x 1 mm), 20 x (4.5 x 2 mm), 20 x (5 x 2 mm), 20 x (6 x 2 mm), 20 x (6 x 2.5 mm), 20 x (6 x 3 mm), 20 x (7 x 2 mm), 20 x (8 x 2 mm), 5 x (9 x 2 mm), 5 x (10 x 2 mm), 5 x (12 x 3 mm), 5 x (13 x 3 mm), 5 x (14 x 2.5 mm), 5 x (17 x 2.5 mm), 5 x (18 x 4 mm), 5 x (20 x 2 mm), 5 x (22 x 2 mm).