From Brotato Wiki
Stats
+8 HP Regeneration
+8 Engineering
+80 Range
Your Speed is capped at its current value
+8 Engineering
+80 Range
Your Speed is capped at its current value
Price
80
Limit
1
Item
Shackles is an in-game item that can be bought from a Shop or can be found in a Crate. Most Items modify the Stats of the player, and some of them provide additional effects.
Unique
Shackles is a unique item. Only 1 of each unique item can be equipped, and it will then no longer be offered in the Shop, and no longer drop from loot crates.
Shackles
When purchased by Streamer, your money is deducted first so your Speed will be capped at a higher amount than is shown at the time of purchase.
There is currently a visual bug when buying this item at a negative speed value, where it will appear to let you increase your speed over the cap, but it will still be capped correctly.