We require a RGB led mounted in a plastic base, more detailed pictures are available with dimensions, the top section of the base will have a velcro pad attached, and a suitable piece of velcro adhesive is also needed, pictures also available for this. The bottom of the plastic base can be glued or removable. The overall dimension of the base is 30mm but this size can be variable as well as shape A large number is required, so a best price is needed, also samples will be required before order placed, if this can be done, contact me, all enquiries will be replied to. Best Regards John Collins Chief Engineer ELS.