The new design also remains the original design of the adjustment of 3' to 6 'and 15 degrees angled head,
but because of the traditional design to rely on arm strength up and down movement to remove stuff,
the design on the end of this section to add a weight, so that entire scraper has a impact- function,
stretching up and down through the outer tube to remove stuff easily.

The impact design can save a lot of force on job, needn't electrics or pneumatics.