321 Slammer is a private, members-only club exclusively for men aged 21 and over. The venue features public and private play areas, including slings, glory holes, and other equipment. Additional amenities include a BYOB bar, free pool table, outdoor patio, indoor fireplace, lounge areas, lockers for rent, and shower facilities (towels not provided but available for purchase or you may bring your own).

321 Slammer operates as a BYOB (Bring Your Own Bottle) establishment. Alcohol must be in its original, unopened container and checked in at the front window prior to entry. Hard liquor brought by three-month members is stored behind the bar for the duration of the membership. Wine, beer, and similar beverages are disposed of at the end of each night.

Locker Rentals are available for clothing and bags. Large lockers are $5 plus a $5 refundable key deposit; small lockers are $3 plus a $5 refundable key deposit. Small check boxes for wallets and keys are available for $1; large check boxes for items like cellphones are $2. 321 Mandatory Bag Searches are required prior to entry for all parties, events, and weekends.

Parking fills up quickly, especially on weekends. Early arrivals are encouraged. Alternatively, consider using Uber, Lyft, taxis, or similar services.

321 Slammer emphasizes a safe and respectful environment. Dungeon Monitors (DMs) are present to ensure safety and must be obeyed at all times. Safer sex practices are recommended, and members are expected to clean up equipment and spaces after use.

No Cellphones or Recording Devices: Strictly prohibited inside the club. Devices must be checked at the window prior to entry.

Dress Code: No general dress code; members must wear traditionally male attire. Colognes, body sprays, and other fragrances are strongly discouraged.

Smoking: All indoor areas are non-smoking. Smoking is only allowed in the smoking lounge on the outdoor patio. Vaping and e-cigarettes are allowed at the bar.

Illegal Substances: The use of marijuana (even with a prescription) and other illegal drugs is prohibited. Offenders will be prosecuted within the full extent of the law and banned from the premises.