SNUG PLUG系列2號塞，直徑3.1cm，適合手指已OK的新手。其實大部份人入口都能進兩隻手指，建議直接買這個，跳過1號，慳返D錢食餐好。
整個系列尺寸齊全，由左至右，從小到大，順序排列。
頂部是易於進入圓錐形設計，軀干位置卻是稀有的直身柱體形，如此直徑均一，容易量度，可以準確符合開發中的最佳尺寸，不會強行撐開門戶。頸部只有一厘米粗，不會撐大門口，而且可因應姿勢彎曲，在站立時、坐下時還是行走時減低異物感。
每個型號內建負重，會小幅度郁動。重量是訓練入口的緊緻度和咬合力的必要原素。平常行走時使用會被帶動而在直腸管道中上下滑動。而這種微刺激會令肛門括約肌反射性收縮，就像舉啞鈴一樣有鍛練效果。
Just an inch bigger than our smallest plug, the Snug Plug 2 helps beginners progress on their quest towards advanced anal or penetrative anal sex.
The 114-gram weights inside of the Snug Plug 2 offer added pressure and fullness, while the ridges provide subtle stimulation that hits the prostate (a.k.a. the P-spot) just right.
Made from body-safe silicone, the Snug Plug 2 is a 4.3-inch butt plug that's excellent for solo or couples play. Another great trait of the Snug Plugs is that they can be used to stimulate the G-spot through the thin lining that separates the vaginal and anal canals.
The b-Vibe Snug Plugs are a series of weighted butt plugs, one through five, that get bigger and heavier as you get bolder in your anal play. If it's your first rodeo, we recommend starting here or with the Snug Plug 1.
★ Best Sex Toy for Traveling — Allure
★ Best Beginner Butt Plug — Cosmo Lab of Sexcellence
★ Best Gift to Give Women — NYLON
★ Best Sex Toy to Buy Your Boyfriend — Women's Health
| 1號 | 2號 | 3號 | 4號 | 5號 |
| 直徑： 2.2cm | 3.1cm | 3.6cm | 4.4cm | 5.1cm |
| 重量：55g | 114g | 180g | 257g | 350g |
| 插入長度：8.6cm | 11cm | 12cm | 13.3cm | 14cm |
