21g olive tipped needles are perfect for flushing of the small male feline urethra in cases of obstructive FLUTD. The blunt tip prevents trauma to the sensitive urethral lining. Rather than forcing struvite plugs back into the bladder with saline, it is suggested that 901526 Walpole’s solution is infused to dissolve away any crystal formation. Then a Jackson catheter is inserted to ensure urethral patency. Luer mount fits any syringe. Stainless steel. Autoclavable. Individually packaged.