Holder for securely attaching a smartphone to the handlebar of a bicycle or eBike, flexible silicone holder for easy insertion and removal of the smartphone, easy installation on the handlebar thanks to individually adjustable rubber band, suitable for every smartphone with and without a case or protective cover, compatible with smartphones with a width of 6 - 8 cm and a height of 13-15 cm, for handlebars with a diameter of 2-3.5 cm, secure hold of the smartphone as the corners sit firmly in the silicone bands
