The Pulse is another adult multi-purpose prescription swimming goggle from the well-known swimming brand Speedo. This goggle is equally suited for training or recreational swimming with the option of different optical lenses in each eye from -1.5 to -8.0 dioptres, with anti-fog coating and UV protection. The synthetic seal and strap plus choice of 3 different nose bridges enhances comfort and fit.to correct short sightdifferent sized interchangeable nose bridgescomes in a single coloursame or different powers in each eyecomes as a parts kitNO STORAGE CASE supplied so we recommend buying a PSG Goggle Pouchcircumference of goggle (eye pieces, medium bridge & strap (unstretched)), approximately 545mmseal/eye piece width 38mmseal/eye piece length 59mmseal/eye piece depth 12mmoptical centre of goggle approximately 72mm (depending upon nose bridge used)