How many Roblox Limiteds has Square Sponge released?
As of September 15, 2026, Square Sponge has 2 Limited items tracked on RBX Invest, with 15,000 copies in circulation and a combined catalog value of 4,310,000 Robux. The catalog's average price growth is +0.0%.
What are Square Sponge's most valuable items?
SpongeBob Baby Plankton Keychain (RAP 316 R$), SpongeBob MY LEG Keychain (RAP 230 R$).
That works out to an average of 2,155,000 Robux of catalog value per item, against 316 Robux for the single highest-RAP release, SpongeBob Baby Plankton Keychain.
How is Square Sponge tracked on RBX Invest?
Square Sponge is Roblox group ID 345016319. Catalog value totals the Recent Average Price of every tracked Limited this group has released, multiplied by the copies of each in circulation, so it tracks what the market pays rather than what the items were first listed at. Average growth compares each item's RAP with the price it originally sold for. Items are added as they are detected in the Roblox catalog and their prices refresh continuously.