Description It is made of steel material, which can be used for a long time. Very easy and convenient to install, it is a very useful bike back seat kid armrest. Though this bike back seat kid armrest is simple in design, it's so practical when you use it. Features - Color: Black. - Material: Steel, rubber. - Size: 18.00X18.00X12.50cm/7.07X7.07X4.91 inch. - This armrest is made of material for a long time and durable use. - Wide application range, suitable for children's bikes, mountain bikes, road bikes, folding bikes, etc. - The bike back seat kid armrest has a simple design, but it is very practical in use. - You will have a good experience because of the good workmanship of this bike's back seat armrest. - The steel armrest is easy to install, brings a lot of convenience to you. This armrest is made of material for a long time and durable use Wide application range, suitable for children's bikes, mountain bikes, road bikes, folding bikes, etc The bike back seat kid armrest has a simple design, but it is very practical in use You will have a good experience because of the good workmanship of this bike's back seat armrest The steel armrest is easy to install, brings a lot of convenience to you