1/4 inch photo thread - the bar can be attached to photo tripods; you can easily attach the bar to your photo tripod or tripod head GP Level dovetail bar with long bores for M6 and 1/4 inch cylinder head screws and 1/4 inch photo thread - length 228 mm Long bores; countersunk at the downside for cylinder head screws for different adaptions - ideal for building dual mounts or side-by-side mounts Flat installation surfaces for perfect support of the telescope; through the smooth side profile; you can easily balance the telescope by shifting All metal construction and anodizing aluminium process; durable for long time use This Astromania DeLuxe Dovetail Bar is suitable even for heavy telescopes where simple profile bars start to vibrate. Through the smooth side profile, you can easily balance the telescope by shifting. The dovetail bar fits to: - Vixen GP and SX mounts - Skywatcher EQ3 to EQ5 and H-EQ5 - several Vixen level saddle plates photo tripods (via the 1/4" thread) and many more. Ideal accessory for photo tripods: via the 1/4" photo thread in the middle of the bar, you can easily attach the bar to your photo tripod or tripod head. Thus you can simply adapt your telescope quickly to a photo tripod, provided that the tripod is stable enough.