OXBALLS BALLER rib-stretchNIGHT EDITIONmax-tall ballstretcher in our lush rubbery SILSOFT SILICONE blend and a smooth, velvet-black color. This is a softer, squishier formula for the hardest and darkest of play. BALLER soft stretchy blubbery hourglass-curving ballstretcher with eight super-stretch outer ribs for max push-down stretch, a taller ballstretcher for lower-hanging sacksthe rubbery ribs keep the squeeze down-low, so it feels like grippy tugging the length of your sack. Based on our all-time most popular SQUEEZE ballstretcher, this one is maxed-out: its taller, wider, with the added rubber-ribs designed for medium to larger or stretchy nutsacksBALLERs design has more grip in the middle and less at the nut/sack openings with a rubbery fat lip top and bottom for sack-stretching comfort. NIGHT EDITIONs plush silicone-blend rubber is Phthalate free with no scent and has amazing super-strong stretch. SILSOFT is LUBE SAFE, we recommend water-based lube like our premium thick OXLUBE, hybrid easy-cleanup OXLUBE or our super-concentrated silicone OXLUBE. Oil-based lubes not recommended. CARE: Wash all toys after use in warm soapy water, air dry, (they will last longer). Store toys separately: we recommend storing in breathable cloth pouches, or for larger toys store in clean cotton socks.