Series of professional spirit levels made from rectangular aluminum profiles. The shape of the spirit level ensures an optimal strength-to-weight ratio. Thicker walls significantly increase bending and torsional strength. Strong side edges provide a secure grip. The eyepiece is specifically designed for the PRO600 Endurance spirit level series. Larger eyepiece with lens – Easy Reading System Plus. The PRO logo is embossed into the eyelet. Double UV-resistant eyelets. End caps are made of elastomer.