OxBalls Masterjack Double Penetration JO Black Ice

Heavy, thick, and built for serious solo sessions – the OxBalls MASTERJACK is a double-holed grip-handle stroker that goes well beyond the basics. It’s hefty in your fist, with a blubbery, fleshy feel that makes every stroke count. This is for strokers who want something substantial, something with real weight and real texture.

The MASTERJACK is made from OxBalls’ softest silicone blend, Plus+SILICONE, which has a dull suede finish that feels warm and fleshy against skin. The outside is covered in industrial diamond plate grip texture, so no matter how wet and sloppy things get, it stays firmly in your fist thanks to the built-in handle. It’s also phthalate-free, so you can focus on the fun.

Two holes means two completely different sensations. Flip it one way for the tighter butt-pucker end, lined with inner ribs and nubs that add serious feel along the shaft. Flip it the other way for the ringed, gaping hole – a bigger, sloppier opening for a smoother, more relaxed stroke. One toy, two very different rides.

Lube, care, and getting the most out of it

The MASTERJACK is compatible with both water-based lubricants and silicone lubricants. OxBalls recommends their own OXLUBE lubes, which are ultra-concentrated and designed for toying – just a drop on your shaft is enough to go all the way in. After use, wash in warm soapy water, air dry, and store separately in a breathable cloth pouch or cotton sock.

FAQ

What is the MASTERJACK made from?

The MASTERJACK is made from Plus+SILICONE, OxBalls’ softest silicone blend, with a dull suede finish and industrial diamond plate grip texture on the exterior. It is phthalate-free.

What are the dimensions and weight?

Length: 5.5in/14cm. Width: 3in/8cm. Depth: 2in/5cm. Circumference: 7in/18cm. Inside diameter: 1in-2.5in/3-6cm. Inner shaft length: 5in/13cm. Product weight: 8oz/227g.

What lube should I use with the MASTERJACK?

The MASTERJACK is compatible with water-based lubricants and silicone lubricants. OXLUBE lubes are specifically recommended – they’re ultra-concentrated, so a small amount goes a long way.

Order with confidence – adulttoystore.com.au ships discreetly across Australia, so what arrives at your door is your business alone.

MASTERJACK stroker – quick specs

• Double-holed grip-handle stroker by OxBalls
• Made from Plus+SILICONE – soft, fleshy, warm, phthalate-free
• Industrial diamond plate grip texture on exterior
• Two holes: tight butt-pucker end with ribs and nubs, or gaping ringed hole
• Built-in handle for a secure grip during use
• Length: 5.5in/14cm | Inner shaft length: 5in/13cm
• Inside diameter: 1in-2.5in (3-6cm) | Weight: 8oz/227g
• Compatible with water-based lubricants, silicone lubricants, and OXLUBE lubes