Ervocom Buzzer flags

I have a set of these and am looking for new grips as the current ones I have are quite worn and they could do with a "make-over" - Any ideas where I can get the grips for them ?
Hi Steve, if you DM me mate, I have an Ervocom spare parts list, from Ilona at Ervocom, you can everything to do with the flags, from flag cloths and battery caps, to complete receiver units and fully transmitted flags, recently just bought myself a spare blue screwdriver, 4 coloured battery caps and spare flag cloths, all for less than £45!