Features:

• Support accurate Autofocus.
• Built-in electric pins.
• Combined with 3 tubes in different length: 12mm, 20mm, 36mm, tubes may be combined for greater magnifications.
• Made of high-quality ABS that is more strong.
• Upgraded circuitry to work better with digital SLRs cameras and SLR lenses.
• Superior lock pin which can tighten the tube joint.
• Perfect for macro shooting.

Specification:

• Compatibility: for most Nikon lenses and for Nikon DSLRS (such as for Nikon D7100, D5300, D5200, D3200, D800, D800E, D5100, D7000, D3100, D300S, D5000, D700, D300, etc.)
• Material: ABS, PC
• Color: Black
• Macro tube size: 6.9 * 7.7cm / 2.7 * 3.03in (D * H)
• Macro tube weight: 176g / 6.2oz
• Package size: 10 * 7.5 * 7.5cm / 3.9 * 3.0 * 3.0in
• Package weight: 230g / 8.1oz