+ P&P: £9.00 per unitDimensionsThickness at thickest point : 2.4 cm , Just under 1"Diameter : 8.5 cm , 3 1/3"Coverage: Vicinity of the carrierGEOMACK GOES POCKET SIZEDG-Oyster™ is for for the new "ocean of electromagnetic pollution" that modern urban society is "swimming in" every day.