This US-LP-01 Fine-Tune Long-type Tripod Head Board is used for macro shooting， or shooting film negatives. Bottom there is alveolar， fine sliding accurate positioning; the bottom of the standard 1/4 screw holes， can be directly screwed to a tripod， head to use. Locking knob and sliding the side knob. Lateral scale， moving more accurate.                                    Features                For macro shooting， or shooting film negatives<br>    Locking knob and sliding the side knob<br>    Lateral scale， moving more accurate<br>    Bottom there is alveolar， fine sliding accurate positioning; the bottom of the standard 1/4 screw holes， can be directly screwed to a tripod， head to use<br>    Activities Scope: 100MM<br>                                                            Specifications            Dimensions    (6.30 x 3.66 x 0.94) " / (16 x 9.3 x 2.4) cm (L x W x H)    <br>Weight    8.99 oz / 255 g    <br>Material    Metal    <br>Color    Black    <br>Activities Scope    100 mm    <br>                                                            Package Includes                1 x US-LP-01 Fine-Tune Long-type Tripod Head Board<br>