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BioThane® Standard Long Line - 12 colours

BioThane® Standard Long Line - 12 colours
BioThane® Standard Long Line - 12 colours BioThane® Standard Long Line - 12 colours BioThane® Standard Long Line - 12 colours
BioThane® Standard Long Line - 12 colours
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A beautifully handmade long line made of standard Biothane ideal for recall training or tracking for medium, large and extra large sized dogs over approx. 12kg of weight (if your dog is under approx. 12kg choose our lightweight puppy and small dog long lines instead). Our standard long lines are available in various colours and either without handle, with standard handle or with a clip on (removable) handle.

Available sizes: 
- Medium dog (approx. 12-25kg) with medium sized trigger hook
- Large and x-large dog (over approx. 25kg) with large sized trigger hook

Size guidance: If you have a medium sized dog (approx. 12-25kg) who is very strong and powerful on lead, e.g. Staffordshire Bullterrier, choose size large and x-large dog (over approx. 25kg) instead

Biothane leads are very strong and durable yet look stylish and feel comfortable in hand. They are ideal for everyday use, and perfect for muddy and wet conditions as they are waterproof and can be easily wiped clean with just a wet cloth. No more soggy long lines!

If you can't find a size or colour you are looking for, please contact us and we are happy to help.

Write an online review and share your thoughts with other shoppers!

Alasdair Stamps-East Hampshire-5 Stars

Brilliant products, brilliant company

Biothane long lines were recommended to me by a qualified dog behaviourist and I've found them to be all-round ideal. They're hard-wearing, with solid grip even in the rain, Rock It Dog Design is THE place to get them, they offer a range of lengths to suit different walks and a huge range of colours to suit different tastes, combined with rapid delivery and absolutely outstanding customer service if you need help.

Julie Husselbee-Shropshire-5 Stars

LOVE these leads !!

easy to clean, sturdy

Jane Petrie-Nairn-5 Stars

Strong; colourful and light.

Strong; colourful and light.

Jon Webster-Wiltshire-5 Stars

Best lead ever !

Best lead ever, doesn’t get tangled and doesn’t soak up water

Julia Wheeler-Plymouth -5 Stars

5 meter line

A great line, easy to use, clean and the colour is exactly as I had hoped.

Sue Bailey-Nantwich -5 Stars

Safe and strong

Whilst these products are not the cheapest they are great quality. The long line is specially are much safer than the usual cord drag lines.

Julie Lee-Chester-5 Stars

Excellent quality

Excellent quality and fab choice of colours. I have 2 Rockit Dog long lines now for my 2 girls, bought the first for my beagle pup and have just upgraded my eldest (schnoodle) to a purple one from her fabric one that the beagle managed to chew through whilst I wasn’t looking 😳

Service was brilliant arrived in a few days, wasn’t convinced it was going to arrive in time as we’re going on holiday just as the old one got chewed through but I thought I’ll need it when we get back anyway so see what happens and yep turned up the day before we left…relief. Well done Rockit Dog design 🐶😊

Suzanne Ereira-London-5 Stars


We have 3 long lines from here now. One for each of our dogs. Brilliantly made and excellent colour choices. Will be returning for more in the future and recommending to all.

Stephen M-Sussex-5 Stars

Very good quality Long Lines

I've used these BioThane lines before, sourced from another supplier. However, RockIt is THE place to buy them. Huge range of colours, brass fitting option offered (rather than nickel), choice of line width and fittings depending on how heavy the dog is. Choose your own length option too. An invaluable training tool when recall is not yet 100%. Excellent service.

Alex Rowley-Wirral-5 Stars

Great Long Line!

I've had three long lines in total now, this one is far better than any other I've tried and I'd actively recommend to anyone. The waterproof nature of biothane means the lead doesn't get nearly as dirty, heavy and wet as others I've tried. Well worth the buy and is making my recall training a much better experience.

Dispatch from order date was very quick!

I've purchased another extension for this lead and a separate standard lead just due to the high quality at RockItDog!

Thank you!