MASSO spring - for chimney sweeping kit - 85847, ideal to facilitate the passage of 45 and 90 elbows. The spring is to be screwed between the rod and the rake. Advantages : With this accessory, you can give a better torsion to your chimney sweeping kit. Highly recommended when more than 6 meters of canes are put end to end for cleaning your chimneys. Easy to use Features : Metric screw (mm) : 12 Weight (kg): 0.3 Packaging : 1x spring for chimney sweeping kit