Description Bicycles front wheel support riser block for trainer training, rises your front wheel to enable your natural riding position. The accessory to any cycling trainer, this front bike riser block will help keep your bike steady as you train inside or outside. Block support for indoor bike trainers training exercises. Features - Color: Black and silver. - Material: Plastic and steel. - Size: 23.00 x 11.50 x 5.50cm/ 9.04 x 4.52 x 2.16 inch. - Raising the front wheel during riding exercise can maintain a natural riding posture and protect the human spine. - Suitable for most road and mountain bikes, one can be used to match multiple bikes. - Wear-resisting and skid resistance so that to keep your safe when riding. - The non-slip design at the bottom makes it safer to use. - The accessory to any cycling trainer, this front bike riser block will help keep your bike steady as you train inside or outside. Raising the front wheel during riding exercise can maintain a natural riding posture and protect the human spine. Suitable for most road and mountain bikes, one can be used to match multiple bikes. Wear-resisting and skid resistance so that to keep your safe when riding. The non-slip design at the bottom makes it safer to use. The accessory to any cycling trainer, this front bike riser block will help keep your bike steady as you train inside or outside.