• Made of high-strength steel, this seat post is robust and durable, with a sleek design. • Dimensions: 300 mm in length and 27.2 mm in diameter. Be sure to measure and confirm the correct size before purchasing. • Includes a marking line at the bottom to ensure proper installation. • Easy to install: simply loosen the saddle bolts, remove the old post, and insert the new one. • Perfect for replacing worn or broken seat posts on most mountain bikes. • Compatible with road bikes, fixed gear, and track bikes. • Color: Black. Product weight: 222 g. Product size: 30 × 2.7 × 2.7 cm.