Strimm Fashionable Studded Sparkly Diamond Rhinestone Soft Leather Dog Collar for Small/Medium/ Large Pets Good quality, made by soft real leather surface and PU bottom, decorated with rows of bling diamonds and rhinestone heart pendant, twinkling and royal for dogs Measurments as following, remember measure your pet's neck size before ordering Size S: collar adjustment is from 27cm to 33.50cm, width is 1.5cm, total length is 37cm, suit for small sized puppy canine kittens Size M: collar adjustment is from 31cm to 39cm, width is 2.0cm, total length is 42cm, suit for medium sized pets Size L: collar adjustment is from 36.5cm to 46.5cm, width is 2.5cm, total length is 52cm, suit for medium to large sized pets