Best Fitness AB Mantis Bench (Black Finish)

• Isolates your abs: a 45° seat angle puts you in the ideal position to target the abdominals for a more efficient crunch.
• Dual function: ab crunches hit the upper abs and knee raises hit the lower abs — a complete ab workout from one machine.
• Adjustable for any user: two additional 5° reclining positions and a three-position upholstered seat suit every size and exercise.
• Comfortable and supported: upholstered upper-back support and textured grip handles — no acrobatics, no floor work.
• Add resistance: a standard weight post with spring lock lets you load it for a tougher crunch.
• Arrives fully assembled and backed by a 3-year warranty.

The BFAB20B’s 45-degree seat angle positions you to isolate the abdominal muscles for a more efficient workout, and two additional 5-degree reclining positions support an entire range of core exercises. Its dual functionality targets the lower abs with knee raises and the upper abs with crunches — a total ab workout from a comfortable seated position.

The ab-crunch motion uses upholstered upper-back support, textured grip handles and a standard weight post with spring lock (plus a lock-out option to help support knee raises). The knee-raise motion adds adjustable-length, 2-position foot rests and its own weight post. Unlike ab machines that require the agility of an acrobat, the BFAB20B keeps you comfortable and seated, and it arrives fully assembled.

Best Fitness — your home, your gym.

Features

• Ergonomic 45° seat angle with two additional 5° reclining positions
• Ab crunch: upper-ab motion with upholstered back support, textured grips and a standard weight post (spring lock + lock-out option)
• Knee raise: lower-ab motion with adjustable-length, 2-position foot rests and a standard weight post
• Three-position adjustable upholstered seat
• Arrives fully assembled

Specifications

• Assembled dimensions: 163 L × 56 W × 117 H (cm)
• Product weight: 27.5 kg
• Plates: includes a Standard weight post; also accepts Olympic plates with an adapter sleeve (plates sold separately)
• Warranty: Best Fitness in-home — 3-year frame, 1-year parts (see the Warranty tab for full terms)
• UPC: 638448001428 · SKU: BFAB20B

Shipping & packaging

• Ships as 1 box — 30.4 kg, 95 × 67 × 27 cm
• Dispatched from our Adelaide warehouse (Woodville North, SA 5012); free shipping Australia-wide.

What muscles does it work?
Both your upper abs (with the crunch motion) and lower abs (with knee raises), from a comfortable, supported seated position.

Do I need to add weights?
No — it works with your bodyweight. An included Standard weight post with spring lock lets you add plates for extra resistance if you want a tougher crunch; it takes Standard plates, or Olympic plates with an adapter sleeve (plates sold separately).

Does it need assembly?
No — the BFAB20B arrives fully assembled.

Is it comfortable to use?
Yes. The semi-recumbent seated position, upholstered back support and three-position seat keep you supported — no floor work required.

Will it fit different-sized users?
Yes — the 45° seat plus two 5° reclines and the three-position seat adjust for any size user.

What warranty does it come with?
A 3-year frame warranty and 1-year parts warranty, for in-home use.

Where does it ship from and how is it delivered?
It ships free from our Adelaide warehouse (Woodville North, SA 5012) in a single box. Orders are dispatched the next business day, with delivery typically 3–8 business days to metropolitan areas.