Boombl4 (Holo)

Boombl4 (Holo) is a Restricted Counter-Strike 2 sticker released for Stockholm 2021 in 2021. It carries a professional player's signature, so it belongs to the autograph series rather than the team-logo set — autograph capsules split their proceeds with the players and teams taking part. This is the Holo finish — the rarer pull from the capsule, which is why Holo versions usually trade well above the Normal one. It was released in the Stockholm 2021 Champions Autograph Capsule, the Champions tier of that series. Applied stickers stay on the weapon permanently unless scraped or removed.

The cheapest live listing is $0.13, tracked across 26 offers on dozens of marketplaces. Asking prices run up to $5.00 — a 38.5× spread between the cheapest and dearest seller, so it pays to compare before buying. Steam Community Market sits at $0.27, meaning the cheapest third-party listing is about 52% lower. Roughly 3,633 units are on sale right now across the markets we track.

Sticker prices are driven by the capsule's age and how many were opened: capsules leave the store after their event, so supply only shrinks over time. Compare the Holo against the other finishes of the same sticker before committing — the gap between them is often larger than the gap between sellers.