Boomerangs II

Bolt / screw sizes

Excel file which allow you to calculate quantity and size of bolts/screws needed for your selection of holds / volumes. By default, bolts are not included with holds (except clear indication of the opposite).

Colours and Brands

It gives you RAL colours used by each brand. Even if the same colour is used by different brands, the shade can slightly change, depending ofmix and material used, quantity of pigment, and also the rough surface of climbing holds. Fluo pigments are not UV stable and must not be used outside.

Holds instructions of use