Bicycle Valve Adapter Kit - Standard size adapter fits most bicycle pumps; Suitable for Dunlopventil (DV), Presta Ventil, Blitzventil (BV), Sclaverandventil (SV), Presta Ventil auf =&gt; Schrader / Autoventil (AV). Presta to Schrader Premium Adapter - All these bike accessories are made of high quality pure copper with screw threads and soft rubber, with rubber seal will not leak , which is extremely durable and corrosion resistant. After a long time of use, the color would not change. Easy to install - Light to carry, convenient, easy to install and easy to use, just screw and inflate a pump, a automotive compressor. This will allow you to use a floor pump or compressor to inflate your tires and pumps. Popular to use - Bike valve adapter kits are suitable for all common valve types. Suitable for mountain bikes, road bikes, fixie bikes with presta valve tubes, also ideal for inflatable toys, air mattresses, gym balls, yoga balls, yoga balls etc.< /p> Package includes - 4 x DV/SV valve adaptors, 2 x AV valve adaptors, 2 x SV valve adaptors; 2 x Ball Pump Needle; 2 glued inflatable sprinklers; 2 x black cone adapter and 10 x sealing rings.