Fat Boy Thin 6.5 in. Extender Sheath Clear6. 5 in. Extender! If you and your partner are new to sheaths or you're afraid that adding more girth to your already massive member may send your partner bolting for the door instead of your bed the Fat Boy Thin may be just what you need! Adding just . 5" of girth to your penis (regardless of size) it will delicately intensify your solo and partner play. Meanwhile the scrotum loop will keep it in place and provide you with a gentle ball tug. The