UD5 Toolkit
Kayak Paddle Shaft Diameter Selector – Hand Size & Joint Pain
Based on your hand size and any joint issues, choose between standard, small‑diameter, or ergonomic paddle shafts.
Tag: CSS Selector Builder
19+ toolsQuickdraw Length Selector – Short vs Long for Rope Drag
Based on the route's wandering nature and your rope diameter, see whether to rack short or long quickdraws to reduce drag.
Camp Chair Seat Height Selector – Comfort for Tall & Short Campers
Enter your height and see whether a low‑style, standard, or high‑back camp chair will be easiest to get in and out of.
Throw Bag Stuffing Technique – Backpack vs Figure‑8 Coil
Compare the speed and tangle‑resistance of different methods for packing a throw rope. Choose the best for your PFD.
Heavy Bag Weight Selector – Your Weight Divided by 2
Enter your body weight to get the standard recommendation: a bag roughly half your weight. Also see filling material options.
Sports Bra Support Selector – Low, Medium & High Impact
Enter your cup size and planned activity to find the recommended encapsulation vs compression style and support level.
Ear Equalization Method Finder – Valsalva, Frenzel & BTV
Describe your equalization difficulty and current technique to get a recommendation for which advanced method (Frenzel, BTV) to learn next.
Paint Stripper Safety Selector – Online Surface & Fume Guide
Select your project material (wood, metal, brick) and location (indoor/outdoor) to choose the safest and most effective paint remover. Check for hazardous chemicals.
Snorkel Mouthpiece Size & Material Selector – Avoid Jaw Fatigue
Based on your mouth size and any TMJ issues, choose a standard, small, or orthodontic mouthpiece for comfortable snorkeling.
Splitting Maul Weight Selector – Match to Your Strength & Wood
Answer a few questions about your strength and the type of wood you split to get a maul weight recommendation (4 lb to 8 lb).
CSS Specificity Battle – Compare Two Selectors Side by Side
Enter two CSS selectors and see which one wins in a specificity battle. Displays the (a,b,c) score and explains why one overrides the other.
Sunglass Tint Selector – Online Activity & Condition Guide
Choose your main activity (driving, fishing, skiing) and get the best lens tint color and VLT recommendation.
Fishing Knot Selector – Online Choose by Line & Lure Type
Answer simple questions (braid/mono, hook/swivel) to see the recommended fishing knot with step‑by‑step animation.
Caulk & Sealant Selector – Online Bathroom, Kitchen, Exterior
Answer where you're sealing (shower, window, baseboard) to get the right type of caulk (100% silicone, acrylic latex, etc.). Avoid moldy seals.
Wood Joint Selector – Online Choose Based on Load & Look
Answer questions about project type and strength needed to get a joint recommendation. Animations.
Guitar Pick Thickness Guide – Online Style & String Gauge Match
Select playing style (rhythm, lead, strumming) and string gauge to get the recommended pick thickness in mm.
Ski Wax Temperature Guide – Online Nordic & Alpine Glide Wax
Enter air and snow temperature plus humidity to get the right glide wax color (Swix/Toko). Perfect kick and glide.
CSS Pseudo‑Class Playground - Online Test :is(), :where(), :not()
Write compound selectors and instantly see which elements they match on a test page. Master complex CSS logic.
Pop Rivet Size Selector – Online Sheet Thickness Guide
Enter material thickness and get the recommended pop rivet diameter and grip range.