Manufacturer's product descriptions: - Designed with Flexible Cable specifically to promote convenient on working this fiberscopes bright images from spaces nothing else could reach from the outside such as the inner side of the Car Door Family Door even the ATM Machine and the Safe box. - Scope Specifications:Yellow Light Illuminator. - 45 Degree reflector; Water oil and heat - Proof. - Power Supply: just using Size AA battery: 2pcs. - Flexible Cable : working length : 46mm; Ourside Diameter: 6 mm - Flexible Cable : working length : 46mm; Ourside Diameter: 4mm - Equip 2 pcs spare lamp. - From the date of purchase we guarantee in the product quality on mending repairing mending with conditions. . * Warranty information is located in the specifications section