How big is the inner hole diameter?
196379
Mine measured at about 2.25 inches diameter of inner opening, the base is about 7.5 inches diameter. Hope that helps.
196380
sure, it is 2 and a quarter inches , approx. these are great for runway cones ( R.C. aircraft ) to keep the airplane going straight , so it doesn't bash into the curb ! the hole in the top equalizes the air pressure to keep it in place , a most amazing invention --- take care !
1739843
It's about 1 inch diameter. Not sure if that's exact, but I used a 7/8 drill and had to enlarge it a bit.
1850300
it is 2.1 millimeters inside diameter. that is the INSIDE 'hole' measurement
50545
Not sure about that device. But the hole is 9mm in diameter.Edit: In reference to Carey Zeng's comment; The outer diameter is 9mm, then it tapers in to an inner diameter of 7mm. I apogize for the lack of care in my original answer.
1884836
I measured the inner diameter; Looks like 3.96mm. Needs female plug. The depth of the hole is about 7.94mm. Hope this helps.
2064572
I believe the hole was 18" diameter. You can download the installation manual if you go onto their website and it will provide the installation instructions.
1149571
The inner screw holes are 10 5/8" apart on center. The outer screw holes are 12 5/8" apart on center. On either side, they are 1" apart.
930278
As I measure it on an unused tip, the inside diameter is 3/4in. Hope this helps. MB
2076902
It is a little bigger than 5/8 inch an a little smaller than 1 cm in diameter, maybe 8/10 of 1 centimeter. I use them to fit an airlock for making vinegar. I have different sizes # 6, 7, and 11 and the center holes are all the same size. There is a little give so it will stretch a little if you need to jam something into the hole.
1782323
Measure the inside diameter and do a am amazon or Google search. There easy to find
897210
The largest hole is the one in the center it measures 15/16" in diameter. The next larger holes are the ones on the outside perimeter, they measure 11/16" in diameter. The others towards the center are 9/16" and 3/8" in diameter
1192192
The dimensions that it will fit into are 2 1/4" (or slightly less) by 5/8" Seems to be pretty good quality. I needed a larger one since I thought the 2 1/2" measurement was for the hole it fits in but it is the outside diameter.
1924812
From outside edge to edge is 1/3 inch. The inner hole is 3/16 inch. Not sure what you are looking for but from the start of inner hole to the outside of outer hole is 1/4 inch. Hope this helps.
2102945
Approximately 1 inch on the inner diameter. It has a 1/8" lip around it for a total O.D. of around 1 1/4".
1855874
Well, I took out my trusty ruler, and found: in inches, 1-9/16 outer diameter, 1-3/8 inner diameter. In millimeters, 4mm O.D., 3-1/2mm O.D. Hope this helps.
1614523
When blown up, the inner hole diameter is 18 inches and the outer diameter is 50 inches.
653598
Hole is only about 1-1.5 inches in diameter, just large enough for pipe to go through.. Secured by o-ring that threads onto threading at the top of the base pipe.