A white squeeze tube with a black screw cap and a band of its own colour, printed Wamiq, GUTTA, Water Based and Contour lining medium for silk painting. A small scissors symbol on the front says how it starts: snip the sealed nozzle before the first use.

Gutta does one job that nothing else on a silk painting can do. Silk dye runs - that is its nature, and it is why silk painting looks the way it does. A gutta line drawn first sits as a raised barrier in the weave, so the colour flooded into one shape stops dead at the outline instead of creeping into the next. Draw the whole design in gutta, let it dry, then flood the colours in.

The water-based formula matters for how the studio smells and cleans up. Solvent guttas need spirit for every spill and a ventilated room; this one behaves like an ordinary water-based medium while it is wet.

At Rs. 295 it costs Rs. 75 more than our Seta Gutta Cone Premium at Rs. 220, and the difference is the cap. A cone is sealed foil - once the tip is cut it cannot be closed properly again, so a half-used cone is on a clock. This tube screws shut, which means a design started in January can be finished in March with the same tube. If you will use it in one sitting, take the cone; if the work stretches across weekends, take this.

The range photographed runs gold, silver, copper and black - the metallic outline colours that read as the leaded line in the finished piece. Cut the nozzle as narrowly as you can, because a wide opening lays a thick bead that never quite dries into a crisp edge, and the cut cannot be made smaller afterwards.

Three of these tubes are packed into our Fabric Painting Deal No. 7 at Rs. 2,120 and three more into our Glass Painting Deal No. 14 at Rs. 1,925, alongside colour, brushes and a palette. We list it from 10 years up. The Safencia price is Rs. 295 with Cash on Delivery across Pakistan, and stock, colour, your city and delivery charges are confirmed on WhatsApp before dispatch.

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