The Kensington SlimBlade Pro Trackball is the best finger-operated trackball because its large ball is responsive and smooth, it’s suitable for both right- and left-handed people, and its four ...

Surface sealing is more likely to occur when using steel trowels or fresnos to finish air-entrained concrete. A fresno is a long-handled trowel with a 5-in.-wide and 24- to 48-in.-long blade that ...