Diamond Bottlenecks 'The Ultimate' Lead Crystal Slide


The Slide
'The Ultimate'. A pretty bold name right?! Well it deserves it, these hand-blown lead crystal glass slides are truly stunning, I personally own many of Ian's handmade slides and have used them for well over 15 years now. Totally seamless with perfectly smooth sidewalls, available in a variety of wall thicknesses (4mm up to 7mm) colour options and specifications, these lovely slides great if you struggle to find just the right fit. 

Choosing the right fit
We currently have a range of Ultimate slide in stock which I personally selected from Diamond Bottlenecks for my stock, and each one is absolutely stunning. To help make choosing which will suit you best, I have measured each slide with digital calipers. Internal Diameters are stated at the smallest measurement, as it can vary a little around the diameter due to the nature of how the glass tubes are blown. There is definitely a tolerance to be taken into account of these measurements, they are merely as close to accurate guide for each slides size as I can get.
Here are the specs of each to help you decide which will fit best -

Java Lava - 53.65mm length - 7.15mm Sidewall Thickness - 17 to 14.6mm tapered internal diameter

Blue Prism - 53.14mm length - 4.45mm sidewall thickness - 17.06 to 15.3mm tapered internal diameter

Amber Prism - 62.73mm length - 3.65mm sidewall thickness - 20.7mm internal diameter

Ruby Prism - 64.05mm length - 6.21mm sidewall thickness -  19.65 to 16.98mm tapered internal diameter

Ruby - 58.84mm length - 5.6mm sidewall thickness - 17.6mm internal diameter

Need more help gauging the size? Here is a guide from our blog to help you find the right sized slide

About Lead Crystal
Here's a bit of extra info about Lead Crystal slides, which I'm sure will help cement your decision of ordering one:
Hand-Blown Lead Crystal slides are considered by many to offer the sweetest, most 'hi-fi' tonal response of any currently available glass guitar slide for all electric, acoustic & resonator instruments.
Although crystal is the softest glass produced in the glass industry, the pure resonance, weight & density of true lead crystal allows the player a quality & clarity of tone not found with soda-lime (commercial bottling glass) or 'Pyrex' (boro-silicate) slides.....if you tap boro-silicate or soda-lime glass tumblers with a nail, then do the same with a lead crystal glass tumbler of similar size - you'll find the 'ring' & smooth sustain of lead crystal will be sweeter & last far longer.
Durability is applied to lead crystal by 'annealing' the blown glass tube in the 'Lehr' and allowed to slowly cool over several days, providing the required necessary hardness against knocks & string wear.