The road bike trailer hitch coupler is an essential accessory for cycling. This bike trailer attachment adapter ensures a secure connection between bicycle and trailer, providing and enjoyable ride. Simply attach the coupler to bike and connect the trailer for a seamless setup. Features -Color:Black -Material:Stainless steel, steel -Size:5.50X4.50X2.30cm/2.16X1.77X0.90in -Size:5.60X5.20X1.80cm/2.20X2.04X0.71in -Convenience: easily attach to bicycle, making use more convenient and enjoyable -Fine craftsmanship: meticulously designed and crafted to ensure durability and use -Versatile design: not only can it tow stroller, but it can also carry other items such as shopping bags, backpacks, and more, adding to its functionality -Lightweight and portable: compact and lightweight, this attachment is easy to carry and does not take up extra space, making it perfect for use -Durability: this bike trailer hitch coupler is built to withstand regular use and outdoor activities Package list: 1 x adapter