The roller chooses cotton fiber material with, good water absorption, excellent elasticity, brush fluently and smoothly, large area, effectively improve the construction quality and efficiency. The brush head use sharpening fibre, and make painting is fine, do not need to dip paint,ensure the full joint. After using the brush, the work efficiency will be higher. the trimming roller brush can reduce the number of painters needed on a job by 50% or more. Ensures that even painters with little or no experience can paint consistent, straight edges with no paint on the trim. It can be used paint doors, window, ceiling, accent, wall, baseboard, chair rail, diy projects painting etc. Specification: Material: Plastic and cotton fiber Size Chart: Size: 9.5x6cm/3.74x2.36inch Package Includes: 2 Pieces Paint Roller Brush Yellow bracket not included (2 pack) Note: Please allow slight dimension difference due to different manual measurement.