Unger ErgoTec Ninja Aluminium Channel ErgoTec NINJA ? The Premium System ErgoTec NINJA is our premium range of sophisticated tools, developed by experienced UNGER engineers to meet the requirements of professional window cleaners for quality and performance. Every product within ErgoTec NINJA family is loaded with features to help you achieve outstanding results with minimum effort; high quality materials for each component have been carefully selected to ensure the best performance. The range comprises of the innovative ErgoTec NINJA Squeegee, now available in a choice of 30? or 40? angle versions; ErgoTec NINJA Washer with highly absorbent sleeve, ErgoTec NINJA Microfibre Cloth with scrubbing corners and spacious NINJA Bucket-On-A-Belt. The latest addition, the unique 2-in-1 ErgoTec NINJA Scraper with variable working angle mechanism is complemented by a durable Holster for fitting to the belt. Complete with soft rubber and SmartClip