Nice adhesives: made of ABS plate and strong adhesive, this disc dashboard pad can attach onto your car and your devices firmly, let your devices don't fly off as you go round corners,easy to use and remove without leaving trace | Suitable size: dashboard mount disk pad measures 86 mm/ 3.4 inch in diameter, it can be widely applied to any suction cup accessories that are smaller than 80 mm/ 3.2 inch, flexible option for car mount sticky replacement; Carefully check the size before buying | Installation steps: make sure the target place that is ready to place is clean and dry, then remove the protective cover on the base of the disk, press the disk down onto the dashboard and press back and forth to increase tightness, you'd better let it for 24 hours to ensure a strong adhesive grip, finally place your suction cup onto it firmly | Compatibility: suction cup mounting disc can be wide applied to smartphone mount, car camera, GPS suction mount and more, please noted the adhesive mounting disk works only with any 80 mm/ 3.2 inch or smaller than 80 mm/ 3.2 inch suction mounting pedestal | Practical gifts: you will get 8 pieces adhesive dashboard mount disc in one set, sufficient quantity to meet you daily using and replacement needs, which are also thoughtful gifts for family and friends