Using the Tern Sidekick Stirrups is a breeze. First, attach them to your bike without the need for any tools. Make sure your big kid passenger is over 110 cm tall and weighs between 18 - 45 kg. Have the passenger place their feet in the stirrups, and the flexible material will hug the sides of their feet. The three secured points will keep their legs safely against the bike. When riding, the reflective accents will make your passenger more visible to others. When you're not using the stirrups, just flat - fold them for a slimmer profile. Keep in mind that this product is part of the Tern Passenger System, so check the PASSENGER GUIDE for other necessary accessories. Also, when using panniers, make sure they are compatible with these stirrups. To maintain them, just wipe them down with a damp cloth every now and then to keep them clean.