The Stabila 48415 Heavy Duty Aluminum Rectangle R-Beam 3 Level Set includes: 41048 48″ R-Beam Type 300 Level 41024 24″ R-Beam Type 300 Level 25100 Magnetic 10” Die Cast 81SM Torpedo Level Carrying Case 41048 48″ R-Beam Type 300 Level: Catalog no. 41048 Type: 300 R-Beam Length: 48″ Offset plumb vial on the 48″ model allows easy viewing from the kneeling position Torsion-resistant 5-chamber “R” profile is STABILA’s strongest and most robust Over 2X more horizontal strength than STABILA’s Heavy Duty Type 196 levels Ergonomic, user-friendly shape provides a continuous handle grip that is comfortable in the hand 3 Straight edges provide superior precision Features 2 coated measuring surfaces Smooth fender finish Convenient Locked Vial System never needs adjustment 1 Horizontal (level) Vial 2 Vertical (plumb) Vials Suitable for vial down/overhead measurement Vials are guaranteed for life Removable shock-absorbing end caps feature anti-slip wall grips Replacement R-Beam End Caps (Catalog # 20080) are available separately 41024 24″ R-Beam Type 300 Level: Catalog no. 41024 Type: 300 R-Beam Length: 24″ Torsion-resistant 5-chamber “R” profile is STABILA’s strongest and most robust Over 2X more horizontal strength than STABILA’s Heavy Duty Type 196 levels Ergonomic, user-friendly shape provides a continuous handle grip that is comfortable in the hand 3 Straight edges provide superior precision Features 2 coated measuring surfaces Smooth fender finish Convenient Locked Vial System never needs adjustment 1 Horizontal (level) Vial 2 Vertical (plumb) Vials Suitable for vial down/overhead measurement Vials are guaranteed for life Removable shock-absorbing end caps feature anti-slip wall grips Replacement R-Beam End Caps (Catalog # 20080) are available separately 25100 Magnetic 10” Die Cast 81SM Torpedo Level: Catalog # 25100 Type: 81SM Vials are big, bright and easy to read Type 81SM torpedo level Strong cast aluminum profile Easy to hold trapezoidal shape Milled measuring surface Vials never leak, fog or need adjustment Level accuracy is guaranteed for life Certified Level Accuracy (in vial up position): 1/32″ over 72″ Bent levels void the warranty Weight: 0.8 lbs