Are these reusable? Or do you need to buy a new pair when you change your trainers?

technically reusable but I found that I pull really hard on mine and I put a drop of super glue in the end and that would technically make them not reusable. technically reusable but since you will cut the ends off when you put the end cap on, you would need to burn the end of the lace to make them easy to re-lace through. so ... with all that said...technically yes but you will really get a new pair that will color match :)

What is "Black paperback"?

I think they are just the color black

I put the laces through the round part eithout pushing the button. Now the button won't push. Won't it supposed to”lock”?

You have to squeeze the button to put the leases through in the first place. Then when you let go of the button it locks the lease is in and you have to push it to open it each time. Pull the laces back out squeeze the button then put them through the new holes.

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RJ-Sport Tieless Elastic Shoe Laces - Heavy Duty No Tie Shoelaces for Kids and Adult with Strong Lock and Speed Shoestrings

Product ID: 777833871

⚡Heavy-duty lock for intense activity

🌀Elastic 3.0mm thick laces for slip-on ease

⏱️Quick tension adjustment button

18573CFA

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Description

👟 Tie Less, Live More — Unlock Your Shoe Game!

SLIP ON FREEDOM IN SECONDS - Elastic stretch lets you slide in and out effortlessly—perfect for busy mornings or quick transitions.
INCLUSIVE DESIGN FOR ALL AGES - Ideal for kids, seniors, and anyone craving hassle-free footwear without sacrificing style.
LOCK GO NO MORE TYING WOES - Heavy-duty locking system keeps laces secure through every sprint and step.
ENGINEERED FOR PEAK PERFORMANCE - Durable locks and adjustable tension designed for triathlons, running, hiking, and all your active pursuits.
TRUSTED QUALITY GLOBAL SATISFACTION - Backed by thousands of 5-star reviews and responsive customer care within 12 hours.

RJ-Sport Tieless Elastic Shoe Laces combine premium elastic rubber with a robust locking mechanism to deliver a no-tie, slip-on experience. Measuring 120cm in length and 3.0mm thick, these laces fit most shoes and boots, offering quick tension adjustment and durability for both athletic and everyday use. Perfect for athletes, kids, seniors, and anyone seeking convenience without compromising on style or performance.

Specifications

ASIN	B073SNKYJK
ASIN	B073SNKYJK
Age Range Description	Kid
Apparel Fabric Weight Class	Medium Weight
Best Sellers Rank	#53,777 in Shoes & Handbags ( See Top 100 in Shoes & Handbags ) #332 in Shoe Laces
Brand	RJ-Sport
Colour	Number 001 - Solid Black
Customer Reviews	4.4 4.4 out of 5 stars (17,047)
Date First Available	2 November 2017
Department	unisex-child
Fabric Type	Elastic
Is Discontinued By Manufacturer	No
Item Length	120 Centimetres
Item Weight	33 Grams
Item Weight	33 g
Item model number	Elastic-Laces-DE-BLUS
Manufacturer	RJ-Sport
Manufacturer	RJ-Sport
Manufacturer part number	Elastic-Laces-DE-BLUS
Material Type	Rubber
Model number	Elastic-Laces-DE-BLUS
Net Quantity	1 Pack
Number of Pieces	2
Package Dimensions	7.6 x 5.8 x 1.9 cm; 33 g
Product Care Instructions	Wipe clean with a damp cloth
Size	One Size
Unit Count	1 Pack

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18573CFA

Duties & taxes included

In stock

Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Senegal.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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