Easy to install. 100% brand new. 100% original Walkera brand. Fine workmanship and perfect style. High quality and durability in use. Light weight and portable to carry. Dimensions: 3.94 in x 2.36 in x 1.57 in (10.0 cm x 6.0 cm x 4.0 cm) Weight: 5.64 oz (160 g)