Inside diameter is 125 inches (32 mm), fits all vacuums that accept 1-1/4 inch inside diameter accessories, such as for Hoover, Bissell, Eureka, Royal, Dirt Devil, Electrolux, Panasonic, Kenmore, Shop vac, oreck etc12 inches wide, swivel neck with high quality durable plastic and scratch-free rubber wheelsnatural horsehair bristlesnatural horsehair bristles, considered the best material for vacuum cleaner toolsfront brushes have spaces between them to allow passage of Larger particles also works well on carpetFits all vacuum cleaners that accept the 1 1/4 inch standard; inner diameter accessories color: black material: abs size: 298x52 mm package contents: 1 * brush head 1 * cleaning brush only the above package content, other products are not included the picture is a little different from the real thing the measurement error allowed is +/ - 1-3cm.