The Stabila R-BEAM Type-300 aluminum level is ideal for use on heavy-duty jobsites. It features a special R-shaped beam profile that increases its strength to over twice that of other level models. This Stabila level's profile makes it ergonomic and more comfortable to hold while you transport it or take measurements. The vials are locked in so you can use the level right out of the box and never need to recalibrate. This aluminum level weighs just two pounds for easy transport. Two rubber end caps protect it from damage due to falls or impacts. The end caps also grip walls to prevent slips and feature a non-marring design.